Rh/CexZr1-xO2 as NGV Catalyst: Impact of ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
Rh/CexZr1-xO2 as NGV Catalyst: Impact of the Preparation of Ceria-Zirconia Support on the Catalytic Performance
Author(s) :
Decoster, Amaury [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Zheng, Yuanshuang [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dhainaut, Fabien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Granger, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Zheng, Yuanshuang [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dhainaut, Fabien [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Granger, Pascal [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
Topics in Catalysis
Abbreviated title :
Top. Catal.
Publisher :
Springer Verlag
Publication date :
2022-10-25
ISSN :
1022-5528
English keyword(s) :
Methane combustion
Kinetics
Rhodium
Ceria-zirconia
Rh-support interface
Kinetics
Rhodium
Ceria-zirconia
Rh-support interface
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
Methane oxidation has been studied on Rh/CexZr1−xO2. Catalytic performances were found highly sensitive to the preparation method of CexZr1−xO2 support. Coprecipitation method leads to the highest conversion and the lowest ...
Show more >Methane oxidation has been studied on Rh/CexZr1−xO2. Catalytic performances were found highly sensitive to the preparation method of CexZr1−xO2 support. Coprecipitation method leads to the highest conversion and the lowest activation barrier suggesting improved metal-support interaction. In contrast, weak resistance to thermal aging is observed. Finally aged coprecipitated Rh/CexZr1−xO2 mimics the kinetic behavior of catalysts prepared by crystal templating method. Kinetic measurements performed on this latter catalyst show that a single site reaction mechanism is more appropriate compared to dual site mechanism which agrees with the assumption that deactivation of coprecipitated samples would be related to the suppression of the metal-support interface.Show less >
Show more >Methane oxidation has been studied on Rh/CexZr1−xO2. Catalytic performances were found highly sensitive to the preparation method of CexZr1−xO2 support. Coprecipitation method leads to the highest conversion and the lowest activation barrier suggesting improved metal-support interaction. In contrast, weak resistance to thermal aging is observed. Finally aged coprecipitated Rh/CexZr1−xO2 mimics the kinetic behavior of catalysts prepared by crystal templating method. Kinetic measurements performed on this latter catalyst show that a single site reaction mechanism is more appropriate compared to dual site mechanism which agrees with the assumption that deactivation of coprecipitated samples would be related to the suppression of the metal-support interface.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
ANR Project :
Administrative institution(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Research team(s) :
Remédiation et matériaux catalytiques (REMCAT)
Submission date :
2023-06-15T03:15:05Z
2023-06-29T15:54:42Z
2023-06-29T15:54:42Z
Files
- dfGfJ
- Open access
- Access the document